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5.56x45 Aero Precision

Aero Precision is recognized for its commitment to precision engineering and advanced manufacturing, drawing on aerospace expertise to deliver reliable firearm components and complete builds. Explore their extensive selection of rifle parts and accessories, including robust lower receivers engineered for consistent performance and seamless fit. For those seeking complete firearms, Aero Precision offers a range of AR15 and rifles designed for accuracy and durability. Featured products include versatile multi caliber options and popular 5.56x45 models, supporting a wide range of shooting applications. Aero Precision’s in-house manufacturing and rigorous quality control ensure each component meets demanding standards for strength and reliability. Shop Aero Precision to experience engineering that supports both custom builds and ready-to-use platforms.

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Aero Precision M4E1 Enhanced 18" 5.56 Rifle Length Complete Upper Receiver with 15" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640251M8

Aero Precision M4E1 Enhanced 18" 5.56 Rifle Length Complete Upper Receiver with 15" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640251M8

$399 99 $599.99
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Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE SL Mid-Length - FDE - APAR502506M65

Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE SL Mid-Length - FDE - APAR502506M65

$289 99 $414.99
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Aero Precision M4E1 Threaded 14.5" 5.56 Carbine Length Complete Upper Receiver with 12" ATLAS R-ONE Handguard - Anodized Black - APAR700704M32

Aero Precision M4E1 Threaded 14.5" 5.56 Carbine Length Complete Upper Receiver with 12" ATLAS R-ONE Handguard - Anodized Black - APAR700704M32

$349 99 $564.99
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Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, M4 Handguard - Anodized Black - APAR505621

Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, M4 Handguard - Anodized Black - APAR505621
$394 99
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Aero Precision AR15 Complete Upper, 10.5" 5.56 Carbine Barrel with Pinned FSB, MOE SL Carbine Handguard - Anodized Black with FDE - APAR502506M3

Aero Precision AR15 Complete Upper, 10.5" 5.56 Carbine Barrel with Pinned FSB, MOE SL Carbine Handguard - Anodized Black with FDE - APAR502506M3

$299 99 $389.99
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Aero Precision M4E1 Threaded 18" 5.56 Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Cerakote FDE - APAR700315M8

Aero Precision M4E1 Threaded 18" 5.56 Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Cerakote FDE - APAR700315M8
$399 99 $634.99
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Aero Precision M4E1 Threaded 20" 5.56 Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Anodized Black - APAR700705M48

Aero Precision M4E1 Threaded 20" 5.56 Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Anodized Black - APAR700705M48
$429 99 $609.99
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M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640221M2

M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640221M2

$379 99 $534.99
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Aero Precision M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Quad Rail - Anodized Black - APAR640221Q2

Aero Precision M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Quad Rail - Anodized Black - APAR640221Q2
$399 99 $534.99
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Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE Mid-Length - Anodized Black - APAR502503M65

Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE Mid-Length - Anodized Black - APAR502503M65

$319 99 $414.99
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Aero Precision 14.5" 5.56 Gov CMV Barrel, Mid-Length with Pinned Gamma 556SL - APRH100067C

Aero Precision 14.5" 5.56 Gov CMV Barrel, Mid-Length with Pinned Gamma 556SL - APRH100067C

$149 99 $249.99
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Aero Precision M4E1 Pro AR-15 Rifle, 16" 5.56 NATO Mid-Length Barrel, 15” MOD 4 Handguard, Ambidextrous Controls, MOE Grip & DT Stock - Black - APCR640476

Aero Precision M4E1 Pro AR-15 Rifle, 16" 5.56 NATO Mid-Length Barrel, 15” MOD 4 Handguard, Ambidextrous Controls, MOE Grip & DT Stock - Black - APCR640476

$1299 99 $1,799.99
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Aero Precision M4E1 Threaded PRO Complete Upper with 16.3" 5.56 CHF Mid-Length Barrel and 15" ATLAS R-ONE Handguard - Anodized Black - APUG700705M105-1

Aero Precision M4E1 Threaded PRO Complete Upper with 16.3" 5.56 CHF Mid-Length Barrel and 15" ATLAS R-ONE Handguard - Anodized Black - APUG700705M105-1
$599 99 $1,029.99
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Aero Precision Enhanced PRO Complete Upper, 16.3" 5.56 CHF Mid-Length Barrel with 15" Enhanced M-LOK Handguard - Anodized Black - APUG600218M103-1

Aero Precision Enhanced PRO Complete Upper, 16.3" 5.56 CHF Mid-Length Barrel with 15" Enhanced M-LOK Handguard - Anodized Black - APUG600218M103-1

$699 99 $989.99
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Aero Precision M4E1 Enhanced 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9" M-LOK Handguard - Anodized Black - APAR612275M2

Aero Precision M4E1 Enhanced 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9" M-LOK Handguard - Anodized Black - APAR612275M2

$349 99 $454.99
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Aero Precision M4E1 Threaded 20" 5.56 Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Anodized Black - APAR700305M48

Aero Precision M4E1 Threaded 20" 5.56 Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Anodized Black - APAR700305M48

$609 99
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Aero Precision M4E1 Threaded 20" 5.56 Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Cerakote FDE - APAR700315M48

Aero Precision M4E1 Threaded 20" 5.56 Complete Upper Receiver with 15" ATLAS S-ONE Handguard - Cerakote FDE - APAR700315M48

$644 99
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Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M102

Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M102

$509 99
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Aero Precision 13.9" 5.56x45mm CMV Mid-Length AR-15 Barrel - APRH100037C

Aero Precision 13.9" 5.56x45mm CMV Mid-Length AR-15 Barrel - APRH100037C

$119 99 $159.99
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Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, 12" M-LOK ATLAS S-ONE Handguard - FDE Cerakote - APAR700314M32

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, 12" M-LOK ATLAS S-ONE Handguard - FDE Cerakote - APAR700314M32

$604 99
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Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Gamma 556 SL, 12" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700704M5V38

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Gamma 556 SL, 12" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700704M5V38

$419 99 $654.99
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Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Cerakote FDE - APAR600224Q97

Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Cerakote FDE - APAR600224Q97
$619 99
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Aero Precision M4E1 Threaded Complete Upper, 13.9" 5.56x45mm CMV Mid-Length Barrel with 12.7" ATLAS S-ONE M-LOK Handguard - Anodized Black - APAR700104M99

Aero Precision M4E1 Threaded Complete Upper, 13.9" 5.56x45mm CMV Mid-Length Barrel with 12.7" ATLAS S-ONE M-LOK Handguard - Anodized Black - APAR700104M99

$399 99 $574.99
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Aero Precision 13.7" 5.56 Cold Hammer Forged Barrel with Dimple, Mid-Length - APRH100822C

Aero Precision 13.7" 5.56 Cold Hammer Forged Barrel with Dimple, Mid-Length - APRH100822C

$219 99 $279.99
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